Mapping Plastic Greenhouse With Medium Spatial Resolution Satellite Data: Development of a New Spectral Index
Document Type
Article
Publication Date
6-1-2017
Abstract
Plastic greenhouses (PGs) are an important agriculture development technique to protect and control the growing environment for food crops. The extensive use of PGs can change the agriculture landscape and affects the local environment. Accurately mapping and estimating the coverage of PGs is a necessity to the strategic planning of modern agriculture. Unfortunately, PG mapping over large areas is methodologically challenging, as the medium spatial resolution satellite imagery (such as Landsat data) used for analysis lacks spatial details and spectral variations. To fill the gap, the paper proposes a new plastic greenhouse index (PGI) based on the spectral, sensitivity, and separability analysis of PGs using medium spatial resolution images. In the context of the Landsat Enhanced Thematic Mapper Plus (ETM+) imagery, the paper examines the effectiveness and capability of the proposed PGI. The results indicate that PGs in Landsat ETM+ image can be successfully detected by the PGI if the PG fraction is greater than 12% in a mixed pixel. A kappa coefficient of 0.83 and overall accuracy of 91.2% were achieved when applying the proposed PGI in the case of Weifang District, Shandong, China. These results show that the proposed index can be applied to identifying transparent PGs in atmospheric corrected Landsat image and has the potential for the digital mapping of plastic greenhouse coverage over a large area.
DOI
10.1016/j.isprsjprs.2017.03.002
First Page
47
Last Page
60
Volume
128
Publication Title
ISPRS Journal of Photogrammetry and Remote Sensing
ISSN
0924-2716
Recommended Citation
Yang, Dedi; Chen, Jin; Zhou, Yuan; Chen, Xiang; Chen, Xuehong; and Cao, Xin, "Mapping Plastic Greenhouse With Medium Spatial Resolution Satellite Data: Development of a New Spectral Index" (2017). Faculty Publications - Emergency Management & Homeland Security. 5.
https://orc.library.atu.edu/faculty_pub_em/5